ANGUS

(origin: Local) A county of Scotland, sometimes called Forfarshire, and took its name, according to Halloran, from Aongus Fer, grandson to Carbre Riada, who, with others, invaded the modern Scotland, A.D. 498. Angus or Aongus is derived from Aon, excellent, noble, and gais, boldness, valor.

Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.